how can i run a specific angular spec test file in NX workspace?

Question

is there any way to run an specific angular spec test file in Nx work space?

Recently i moved my Angular 4 cli application into Nx work space. Previously i used fdescribe to achieve this functionality.
So please suggest me if there is any option to do this in Nx work space?

Archaeological

There's a few similar/duplicate answers so I'll just comment here a couple of things that caught me out here: 1. You don't need to specify the full/relative path to the file; you can just use the filename. 2. If you do specify a path, it doesn't work with backslash (Windows-style), you must use forward slash – Frazer

Answer 1

It would be the same way we do it for a single app, but please note you should use --app='your-app-name' along with ng test, so the final command looks like below,

ng test --app='app1'

Osullivan

how to test it for a lib? – Packston

Libs cannot be tested individually, we can add fdescribe to the spec file in lib and run test on the app that uses the lib. – Osullivan

Got the solution. I had to add an app. Angular cli expects main.ts. through the app consuming the lib, we can execute the tests for the lib – Packston

Answer 2

This worked for me

 nx test --test-file example.spec.ts

Lorenzalorenzana

You can even be more specific and add --test-name-pattern=regex to target a specific test in that file. – Manolete

You need to specify project name, (the workspace might have multiple projects). So like this: nx test projectName --test-file example.spec.ts – Shwa

Thank you. I needed this as well, so sharing: --codeCoverage flag. – Panel

Answer 3

This worked for me:

nx run <project-name>:test --testFile=<file-name>

Cassock

Answer 4

For me the watch tag did the magic:

ng test --watch

Before running through everything it offered me the following options:

 › Press a to run all tests.
 › Press f to run only failed tests.
 › Press p to filter by a filename regex pattern.
 › Press t to filter by a test name regex pattern.
 › Press q to quit watch mode.
 › Press Enter to trigger a test run.

Selecting the 'p' option and typing xy.service.spec.ts worked fine.

Note: I'm using not the latest version ("@nrwl/nx": "7.4.0")

Century

Answer 5

this worked for me:

nx run <project-name>:test --testFile <filename.spec.ts>

Southwester

Your answer could be improved with additional supporting information. Please edit to add further details, such as citations or documentation, so that others can confirm that your answer is correct. You can find more information on how to write good answers in the help center. – Lacto

I don't see how this is any different from this answer https://mcmap.net/q/345103/-how-can-i-run-a-specific-angular-spec-test-file-in-nx-workspace (itself marginally different from the top voted answer). – Whisper

Answer 6

It's actually nx run <project-name>:test --testFile=<pathtofile.spec.ts>

Use Unix style for path (/ instead of ).

You can run with --watch option if you want the process to keep running tests every time you make a code change.

Coaster